Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddbdc588746dad4…

MALICIOUS

PDF

120.5 KB Created: 2021-10-04 23:10:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: f64a295d8c2048bf2f7912b32c35b47d SHA-1: 9e728d12d4185b1a756de8507ccaff240c740098 SHA-256: 3ddbdc588746dad4aefe62e774beef6ba10901bc3a3b65283beaffa1e9d11d2e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://coretry.ru/uplcv?utm_term=transport+of+o2+is+done+by PDF link annotation
    • https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/32232003834.pdfIn PDF document text
    • https://8cj2aja7-8mxb.com/contents/files/93464371721.pdfIn PDF document text
    • https://lalicorne-hotel.com/userfiles/file/88885749298.pdfIn PDF document text
    • http://stefanourso.com/public/userfiles/file/vulokibarunokoxelorowo.pdfIn PDF document text
    • http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/pagupometexiwuva.pdfIn PDF document text
    • https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/5b72d93783459cd36af2bfe3790d2405/rowofulexusizotowux.pdfIn PDF document text
    • http://faradbox.pl/files/file/21766145266.pdfIn PDF document text
    • http://machinegroup.ru/img/outer/files/6966801878.pdfIn PDF document text
    • http://www.rupankar.com/fckimages/file/popututegoluzikiwoki.pdfIn PDF document text
    • http://vhshf.de/File/janoviziko.pdfIn PDF document text
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16142fc6cbeab8---20372488178.pdfIn PDF document text
    • https://yucekalipmakina.com/tsrm1/img/userfiles/file/jowufikizebupowisod.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/e90322f0675af3b914db8c740484dd2a/30744797345.pdfIn PDF document text
    • https://soi.icami.mx/ckfinder/userfiles/files/39774256818.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/0e18058aadd59d0bc66ee5eb04a7983d/73447141831.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161515d75e90a3---tokujod.pdfIn PDF document text
    • https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/3ks91ea7856dgcrqm3vkdvg0n8/jimaranuja.pdfIn PDF document text
    • https://saglamahsapkutu.com/img/editor/image/file/nawuriguradotusa.pdfIn PDF document text
    • http://luxcottage.ru/stroykamen/userfiles/file/tasalaz.pdfIn PDF document text
    • http://miyozenemeryville.com/uploads/files/rezisanenubo.pdfIn PDF document text
    • http://abnicum.com/files/file/26036207936.pdfIn PDF document text
    • http://colonia-hausmeister.de/uploads/files/donudivefasemuzozi.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137fd726ccb7---pivotarosipesa.pdfIn PDF document text
    • http://fiumevivo.it/userfiles/files/51320467285.pdfIn PDF document text
    • http://ooexperience.be/assets/Image/files/lonajedomaguv.pdfIn PDF document text
    • https://tailormade-sales-marketing.com/userfiles/file/sipikofimuruxip.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016a4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A4C 10780 bytes
SHA-256: f85097c7d2e515faedf766f380580f95750beecb37816f3bd2c097d493ca58f1
font_01_sfnt_off0001831e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1831E 22032 bytes
SHA-256: 41d0bacc01b51777fe4cc007ece0d942078a927db53b820c50672cae69e6b09e
font_02_sfnt_off0001bc20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BC20 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1